<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <table border="1" cellspacing="0" width="400px">
        <tr>
            <th>讲师名称</th>
            <th>所教班级</th>
        </tr>
        <tr>
            <td>朱老师</td>
            <td>Java1812</td>
        </tr>
        <tr>
            <td>王老师</td>
            <td>UI1812</td>
        </tr>
        <tr>
            <td>李老师</td>
            <td>H51812</td>
        </tr>
    </table>

    <table border="1" cellspacing="0" width="400px">
        <tr>
            <th>讲师名称</th>
            <th>所教班级</th>
        </tr>
        <tr>
            <td rowspan="2">朱老师</td>
            <td>Java1812</td>
        </tr>
        <tr>
<!--            <td>王老师</td>-->
            <td>UI1812</td>
        </tr>
        <tr>
            <td>李老师</td>
            <td>H51812</td>
        </tr>
    </table>

    <table border="1" cellspacing="0" width="400px">
        <tr>
            <th>ID</th>
            <th>姓名</th>
            <th>年龄</th>
            <th>性别</th>
        </tr>
        <tr>
            <td>1</td>
            <td>zs</td>
            <td>21</td>
            <td>男</td>
        </tr>
        <tr>
            <td>2</td>
            <td>ls</td>
            <td>22</td>
            <td>男</td>
        </tr>
        <tr>
            <td>3</td>
            <td>ww</td>
            <td>23</td>
            <td>男</td>
        </tr>
        <tr>
            <td>4</td>
            <td>ll</td>
            <td>21</td>
            <td>女</td>
        </tr>
    </table>
</body>
</html>